WORST CUSTOMER SERVICE!!!!!!!

We took our car there for a turbopipe in March. They said they do not have a pipe available, bit will order a pipe for us, it should take 2-4 weeks, we need to pay 50% deposit. We paid the deposit. It is now September.. We have not received a turbopipe yet. We found a trustworthy company that got us a pipe. We have e been trying to get our deposit back for over 2 weeks. They do not get back to us We have phoned them EVERY day. They are VERY reluctant to be help in ANY way. This has been the WORST customer service I have ever received from any company. SHOCKING!!!!!!!!