DSTV Rewards Is a ****

DSTV rewards is a ****, I was gifted with "Dining Experience on Us" which I claimed and a unique 5 character pin was sent me and also visible on the app when you go to your claimed gifts, the issue comes when you go to www.dstvrewards.com and when you enter the 5 character pin, you get an error message saying the pin must be at least 6 characters....where am I suppose to get the 6th character from when you only sent me a 5 character pin? This is the 3rd time I have been having this same issue with no resolution to it