3 months and still waiting for collection and compensation of half filled castle light bottles

customer service is terrible. i laid a complaint regarding a castle light 6 pack where the bottles was not filled correctly. this was in May. now i know issues do occur, and there is a complaint page on the website for SAB to have the opportunity to rectify the situation and make it right with their loyal clients. i received a call from a gentleman saying he would come uplift the stock and provide me with a gift voucher as compensation. which i found very fair.

it is now August and he has not come to collect the stock, neither have a received the voucher or heard from him since. this is not what i would expect from SAB. absolutely shocking service. i still have the bottles in the packaging. after 3 months now, do you think that this can be resolved.