i believe Y is the amount of the credit u want to share eg. RM5 or RM10 provided if u have minimum balance of RM10 and RM0.50 will be charge to every single successful transaction.

must type RM lorr..

Usually when people or especially girls go to a club, they (the club) might ask you to write your personal data such as name, address and phone no for reference and to inform u if got functions or any special promotions. Its some sort of telemarketing via sms i believe. In ur case, maybe someone gave ur hp no and they send u all the promo sms. Maxis have nothing to do with this and u need to get the service provider to cancel ur subscription. I hope that will help.

yup, it can be done at any maxis service center. but the price i'm not so sure about it. last time they charge rm50 for simcard replacement. good luck!

It's your first time topup after u change to Hotlink Plan izzit? Then that sms is to inform u about their new rate and talktime period. It's not promotion. Cheers!