Iv rented a film although it didnt load properly, i tried to re download it although nothing happened it just took my money

Question

Iv just tried to rent this film and when it finished downloading i went to play it although it wouldn't play properly, as i tried to play it again it just shutdown my video tab and went to the home screen. I went back onto the video tab to find my film i rented,gone. it told me before i played it i had 2 days before it expired therefore, i had one day left. I went onto the iTunes store and tried to find the download tab (as instructed) although nothing was there. I went back onto the purchased tab in the iTunes store and it had no record of me renting this film.
So i decided to re-download it hoping it wouldn't cost  again as i had already purchase it. (Because i have purchased an app before when i went to re-purchase it, it told me id already purchased it and obviously wouldn't have to pay again. Therefore, i thought this also applied for buying/renting films) obviously not, it had taken the money from my iTunes account and it told me to go to the download tab as i had already purchased this. Although there was still no tab. I went to buy something random which would be free, in order to get the download tap to re- appear. And when it did there wasn't any mention or anything of the film.Therefore i had paid twice for a film i hadn't watched. I then decided to download another film which turned out to be free. That had downloaded successfully although when i went to play it, there was some fault and it wont load. Could you please help me get either my money back or the film that i had purchase TWICE! Thank-you! :)

Answer 1

It sounds like you may have multiple problems, but none of them are likely to be caused by malware.
First, the internet-related issues may be related to adware or a network compromise. I tend to lean more towards the latter, based on your description of the problem. See:
http://www.adwaremedic.com/kb/baddns.php
http://www.adwaremedic.com/kb/hackedrouter.php
If investigation shows that this is not a network-specific issue, then it's probably adware. See my Adware Removal Guide for help finding and removing it. Note that you mention AdBlock as if it should have prevented this, but it's important to understand that ad blockers do not protect you against adware in any way. Neither would any kind of anti-virus software, which often doesn't detect adware.
As for the other issues, it sounds like you've got some serious corruption. I would be inclined to say it sounds like a failing drive, except it sounds like you just got it replaced. How did you get all your files back after the new drive was installed?
(Fair disclosure: I may receive compensation from links to my sites, TheSafeMac.com and AdwareMedic.com, in the form of buttons allowing for donations. Donations are not required to use my site or software.)