Sadly disappointed

It is with deep regret that I am writing this compliant as I have always had excellent service from takealot.<br> I logged a return on a fault battery for my twisp on 2015-05-14. It was collected on the 19th May. I was not aware that the whole pack needed to be returned but I spoke to Ian and he said he would make a plan. However I changed the coil on my fixed twisp and the liquid just leaks out not matter what I do. I actually watched a YouTube Video on how to do it so I am certain that I did it right. I made sure that it was securely fastened and the liquid still leaks out. I sent an email on the 21st May advising that they should come and collect the entire pack and replace it. I received an auto response. I sent another message on the 27th May advising that the pack was ready for collection. Received and auto response. I called in yesterday and was told that the matter had been escalated and I courier would contact me to collect the pack. I heard nothing and I have phone in twice today and spoken to 2 different consultants and once again told that the courier would contact me.<br> I still have not received that call or had my item replaced. Not sure what to do now?