Impossible Online Ordering system and the worst customer service by call centre staff!

The Clicks Online App is the WORST! I have for a week been trying to log in, firstly it would not log me in as my email address had changed, and clicks had to make the change that apparently takes a couple of days to register. Ok, no worries, I understand. So I ordered as a "Guest". But the product I actually need to order is an OTC product, and for that I need to be verified, with correct email address, delivery address etc. So today I try to order the product again, now the system wont accept my physical delivery address? When I ordered last week, same thing, but I had to physically enter my correct delivery address as a GUEST, the system cannot automatically locate the delivery address. When I phoned the call centre AGAIN, the operator kills the call when she hears about my query? Clicks, are you mental? Employing people who clearly do not know how to interact with customers and an online system that is deficient? You obviously have a very real problem with your business!!!