Didn't know about this until i got a text from t-mobile today & couldn't find it on here so hope it was ok to post it
Top up & Stretch makes your tops ups last longer by rewarding you with free credit to use at the weekend.
With T-Mobile you don't need to wait until next month for your rewards, simply make £10 of top ups Monday to Friday and we'll give you extra £10 free credit to use that weekend.
* Get more out of your weekend - spend your free credit on text, talking or picture messaging
* Top up when you want - as long as it reaches £10 by Friday you get £10 free weekend credit on us
How to Top up & Stretch
To register, simply text Stretch to 441. We take care of the rest.
IMO this is a great deal as i don't always text people i an use the free credit to call people instead. Plus you don't have to top up £10 in 1 go you can top up £5 on Monday & £5 on Thursday & still get the £10 free credit on the weekend