Discount Vouchers Expired To Soon

My FNB cheque card expired at the end of April 2015. Realizing that I had not been notified of the new card I contacted FNB telephone banking 23/04/2015 and was informed that it was at the Mossel Bay branch. This is where I originally opened my account 20 years ago. I have been staying in George for 5 years now and for the past 5 years my banking has been done via this branch even for collecting new cards. Anyway I requested the card be sent Riversdale FNB, where for the next couple of months I will be working on road reconstruction. On my way to Cape Town on Thursday 30/04/2015 I was contacted by FNB Riversdale. My new card was available for collection. I collected it after the long weekend, Monday 4/05/2015. An online discount voucher pack was included with the new card. I was very excited and immediately tried to use the takealot voucher only to realize at checkout that the voucher expired at the end of April. All the vouchers had already expired. I found out that this was an FNB promotion and that other clients too recieved expired vouchers on the day that they collected their new card. This is very bad advertising and I feel let down by my bank