Online shoping nightmare

In July I bought a perfume Black XS EDT that was on special. I received my package first week of August but it was a wrong product, they delivered EDP instead of EDT. Ever since then I have been calling their call Centre to get what I have ordered with no luck. Every time I call I am told there is no update on my query. We are now on a third month and the issue is still not resolved. The money that I saved when buying this product is now being spent on the countless phone calls that I make. This is inacceptable