Grossly inconvenience caused by Mica hardware

Today I went to Mica hardware port elizabeth Seaview branch to bought dog food Jock 25 kg by 2 bags which were advertised as r370 per bag but was told by manager there were error on the adverti*****t which advertised incorrect jock products which the correct bag were 20 kg bag with less proteins but the manager offer me a totally different product which are 20kg bag not the 25 kg bag of dod food, as per manager explanation there don't have 25 kg bag there are out of stock.

My amicable solution is for the manager to offer the same jock food of 25kg at r370 as advertised, the error was not caused by myself which caused grossly inconvenience because I drove 32 km to Mica hardware because of the error adverti*****t.