Mydala — coupon code provided are invalid

Address:

Mumbai City, Maharashtra

rs 30 has deducted form my Vodafone talk time and a voucher code has been provided to me but the same found invalid at the time of booking from pvr cinemas. after having a talked with executive around 5.10 pm dated 27.5.15 they asked me for the screenshot and asked to mail the same to [protected]@mydala.com but the same has not been sent due to insufficient space in the mail box of mydala.com this is unexpected from the end of mydala..they do not have sufficient space.. being in the service sector such type of service is unexpected. i just want cashback of rs 30 in my prepaid account of Vodafone.