Cash back question paperwork question.

WLITC

I have a quick question regarding my Link store/3 mobile cash back. I need to send off my 10th and 12th airtime bill to collect my final cheque and I'm about to copy the airtime/phone bill and was wondering whether I need to send a copy of the ENTIRE bill or just the first sheet? Last time my friend photocopied everything for me so I had him do it all, but this time I have to take it to the shop and pay for the copies and I don't want to waste money copying the whole bill (copying both bills, doublesided is 18 pages!!) if I don't need too.

WLITC

I've answered my own question. I rang the cashback helpline and they said just a copy of the front page of each bill. Anyway, thought I'd post in case someone has this query in the future.