Bad service might make me not visit Wimpy again

Visited the Wimpy Lambton in Germiston JHB. Had the worse experience ever. Waiters and reception is so super unfriendly and unhelpful. Most unfriendly attitude received from any wimpy I've ever received in South Africa. Ordered a milkshake that was pure water, not sure what was used. Seems like it was mixed with milk instead of ice cream. Overall just a extremely terrible experience. Definitely won't be back here.