TOPS Spar sells **** liquor!

I bought a bottle of Hennessey from Tops. Upon opening and sipping my drink I realized that something was amiss. I asked someone else also taste but we quickly figured there was something wrong. The content of the bottle wasn't Hennessey but it was a colored liquid which I cant say for sure what it is. I phoned the store to query this but nothing was done on that day. They called the following Monday to say I must return the bottle for a refund or replacement and that they will take the matter up with their supplier. What really upset me the most is the lack of care or basic customer service. I sipped on something that I didn't even know what it was, and later even vomited because my body was reacting to this thing. They still expect me to go back to their shop and put in more effort to go and take the bottle back. I explained to them that I don't have time because I have work, but they said if I cant return the bottle there's nothing they can do for me. I suggested that they send a driver to come and collect the bottle and bring a replacement bottle but they said they cant do that. I'm still sitting here with a bottle that contains something that I don't even know!