Not as hot as I first thought. Must top up £10 and they don't include VAT. So £11.50 for £10.00 credit, with £10.10 cashback, meaning £1.40 for £10 credit after cashback.
Just noticed Skype now showing at 101% on TCB. Assuming cashback is paid, you could actually make a profit buy buying Skype credit, as well as getting the Skype credit.
******** Purchases must be made via Skype website and not skype software. *************
Doesn't list a minimum or maximum top up. And of course cashback is never guaranteed.
It does say new customers only, which I presume (but can't confirm) means first time you top up the account.
A fair few what if's involved but on the surface, top up £10, get £10.10 cashback and £10 of credit...
Skype charges tax on it
Total £11.50 GBP
NEW CUSTOMERS ONLY