Pages, Numbers and Keynote will not update via app store

Question

App Store tells me there are updates for Pages (5.2.2), Numbers (3.2.2) and Keynote (6.2.2) but when I click on the Update button there is a little swirly in the top left hand corner near the maximise/minimise buttons but then nothing happens.
I successfully applied the updates to OSX (10.9.5), Safari (7.1) and ITunes (11.4) today so there is no issue with connecting to the App Store.
Mac Mini (late 2009), 2.53 Ghz processor, 4GB ram

Answer 1

Thanks for helping.  Here is the output when I try to install Pages:
Marker - 20 Sep 2014 13:36:43
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISCheckPreflightOperation: Downloading remote pre-flight from http://a590.phobos.apple.com/us/r1000/150/Purple3/v4/d7/a6/7e/d7a67e93-a50b-d1df -566b-45ab215a3847/signed.dcr.2275365984448169492.pfpkg
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISCheckPreflightOperation: remote pre-flight downloaded to file:///var/folders/4h/ypvjj7vs7tl046pf2pmgnfs80000gn/C/com.apple.appstore/4092 01541/preflight.pfpkg
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISCheckPreflightOperation: Running local pre-flight from file:///var/folders/4h/ypvjj7vs7tl046pf2pmgnfs80000gn/C/com.apple.appstore/4092 01541/preflight.pfpkg
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: PKDistributionController: Found asset whe57195650381089774.pkg on disk for item 409201541 - Size 297943842
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: PKDistributionController: Performing disk space check with 230116106240 bytes available on disk, 297943842 bytes alreay downloaded and 931473408 required bytes (installSize=318959616 + fileSize=297940992 + paddedSize=314572800)
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISCheckPreflightOperation: verified preflight success=1, error=(null), distController=<PKDistributionController: 0x7fb0b3e1de10>
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local com.apple.WebKit.WebContent[393] <Critical>: FRJSInterface: Calling install requirements callback for 409201541 - {
     adamID = 409201541;
     success = 1;
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local com.apple.WebKit.WebContent[393] <Critical>: FRJSInterface: Page requested a buy
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local com.apple.WebKit.WebContent[393] <Critical>: FRJSInterface: Forming purchase object of type software
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISStoreURLOperation: Starting URL operation with url=(null) / bagKey=ds-appleid-lookup
Sep 20 13:36:48 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: -[ISStoreURLOperation _runURLOperation]: _addStandardQueryParametersForURL: https://p15-buy.itunes.apple.com/WebObjects/MZDSService.woa/mac/appleID
Sep 20 13:36:49 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: SSPurchase: purchasesGroupedByAccountIdentifierWithPurchases is returning  0:[email protected]:409201541
Sep 20 13:36:49 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: SoftwareMap: Found app at <CKSoftwareProduct: 0x7fb0b3d15fa0>: (com.apple.iWork.Pages, 5.2, 409201541:501232653 VPP:NO source:LaunchPad /Applications/Pages.app)  using SoftwareMap to upgrade to (null)
Sep 20 13:36:49 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: PurchaseDownloadPlaceholder: Download <PurchaseDownloadPlaceholder: 0x7fb0b3c7ac70>: com.apple.iWork.Pages (409201541) paused:0 failed:0 isInServerQueue:0 is known to be an update when metadata is set
Sep 20 13:36:49 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: ISStoreURLOperation: Starting URL operation with url=(null) / bagKey=buyProduct
Sep 20 13:36:49 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: -[ISStoreURLOperation _runURLOperation]: _addStandardQueryParametersForURL: https://p15-buy.itunes.apple.com/WebObjects/MZBuy.woa/wa/buyProduct
Sep 20 13:36:50 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: PurchaseOperation: Purchase (productType=C&salableAdamId=409201541&pricingParameters=SWUPD&price=0&appExtVr sId=662933457&ct-id=14&origPage=SoftwareUpdates-GB) failed, but had dialog: {
     cancelButtonString = Cancel;
     defaultButton = ok;
     explanation = "To proceed, you must read and accept the new terms and conditions.";
     "m-allowed" = 0;
     message = "The iTunes Terms & Conditions have changed.";
     okButtonAction =     {
         kind = Goto;
         target = main;
         url = "https://p15-buy.itunes.apple.com/WebObjects/MZFinance.woa/wa/com.apple.jingle.ap p.finance.DirectAction/termsPage?pricingParameters=SWUPD&salableAdamId=409201541 &guid=34159E272DBE&origPage=SoftwareUpdates-GB&receipt=%3CNSData%3A+0%2F4732%2F3 082127806092A864886F70D010702A08212693082126502...%3E&productType=C&appExtVrsId= 662933457&price=0&ct-id=14&creditDisplay=&isBuyExcepn=true";
     okButtonString = OK;
Sep 20 13:36:50 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: StorePurchaseBatchOperation: Cancelling 1 purchases from batch after error: Error Domain=ISErrorDomain Code=-128 "Unknown Error." UserInfo=0x7fb0b3e32e20 {NSLocalizedDescription=Unknown Error.}
Sep 20 13:36:50 Adrian-Biffens-Mac-Mini.local com.apple.WebKit.WebContent[393] <Critical>: FRJSInterface: Calling purchase callback for 409201541 - {
     adamID = 409201541;
     errorCode = "-128";
     errorDomain = AppStoreErrorDomain;
     localizedErrorDescription = "Unknown Error.";
     productID = 409201541;
     productTitle = Pages;
     success = 0;
Sep 20 13:36:50 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: Purchase batch operation finished with success=0 error=Error Domain=ISErrorDomain Code=-128 "Unknown Error." UserInfo=0x7fb0b3e32e20 {NSLocalizedDescription=Unknown Error.}
Sep 20 13:36:50 Adrian-Biffens-Mac-Mini.local storeagent[246] <Critical>: UpdateController: OS Updates finished - error=(null)