Bad Service, Misinformation and No Communication or response to emails

Very disappointed with the service I have received from the iStore Technical department. My iPad Mini 4 had a frozen screen and totally shut down. I contacted them via their web page chat and was most impressed with the efficient way my query was handled. Well that's where it stopped, My iPad was collected from my residence, they confirmed it and next I received a quote for R7,000.00 with a 90 day warranty, which means it is someone else's reconditioned iPad and telling me to respond in 7 days or quotation becomes invalid. I have tried repeatedly to find out what was wrong with my iPad - but to no avail. Nobody responds to email queries, online chat I'm too far down the queue. Very disappointing service, I have since purchased a brand new iPad elsewhere for the same price with a 1 year warranty, and will never use iStore again. Still trying to get my own iPad returned though.