Rude Manager

Tops manager very rude. I went to Tops in China mall midrand and there was a special for Tanquery and tonic advertised at the door and on the shelf below Tanquery. However to my Surprise when got to the till the specifiee tonic was finished but they still wanted to charge me the same price as if i got the tonic. When i refused that the manager was rude and told to get out of his store if I refuse that charge. The alternative he offwred was that i either take a cola or have to come back at another time for the tonic. There was another brand of tonic which i asked to take instead but he insisted i take a cola... I dont drink a cola especially not with gin which is why i was asking for a tonic. It is very rude and disrespectfull to be shouted at by a store manager i front of other customer. Worse he was ordering me to get out of his store... We buy at this store, we support it but to be treated like that it is disgracefull.