Still waiting for goods to be collected

I recieved an order that was poor quality on the 23rd of February, I immediately called homechoice to collect the shipment as I wanted to order a new one. They said it will be collected within 2 weeks. Today is the 26th of March and I still have the package. I called in last week and I told the agent I will be going on holiday end of March and she told me the package will be collected by then. From the 30th I will be out of the country and will only be back mid April. I will not pay for something that I have requested you guys to collect. Pliz make a plan for this to be collected by the 30th or else after 19 April.