What ever you do, please don't risk your money with Advance Tec.
Their customer service is non-existent and their customer forums are *full* of spam, questions are ignored and negative comments are deleted.
Edit: Oh, and Advance Tec also get their employees to post positive reviews & comments on Trustpilot - don't fall for them!
Connect with Facebook to get one click access to Trustpilot. It's easier.
Sign up with Facebook