Just making other users aware of this problem.
Tesco ran a promotion on the weekend of June 17th which was to give back 50% of purchases on garden furniture/ barbeques in clubcard vouchers in the August mailing. In my case, this refund was not included in the August mailing and I am currently in correspondence with Tesco over the matter. Fortunately, I held on to my receipt and was able to show it to the store manager.
Tesco ran a promotion on the weekend of June 17th which was to give back 50% of purchases on garden furniture/ barbeques in clubcard vouchers in the August mailing. In my case, this refund was not included in the August mailing and I am currently in correspondence with Tesco over the matter. Fortunately, I held on to my receipt and was able to show it to the store manager.