Gregg's free coffee saying voucher used

[Wobie]

Hi,

I keep getting an error on my O2 priority app, I go to get a free coffee from 7am with Gregg's and it says voucher used. Last time I used it was Thursday just gone. 

I have already been intouch with o2 customer service because this happened at the end of last week and continued into this week. I successfully redeemed a coffee through priority at Gregg's this Thursday and thought the issue had fixed itself. However I have gone to get a free coffee today and it's saying voucher used all over again.

Any advice would be appreciated. I have tried uninstalling, reinstalling the app, clearing cache/ data and browser history aswell. My phone is updated to the latest android.

Many thanks,

Sophie

[MI5 · Accepted solution]

@Wobie 

It's one free item per week. 

https://community.o2.co.uk/t5/O2-Priority/Greggs-Offers/td-p/1558166