Techmac TV - non-response to customer in guarantee period

Techmac fixed my TV a week ago after it stopped working. I was told it was a backlight problem. All done and replaced. So far so good.

After 2 days, the TV showed similar fading and wouldnt switch on. Trying to get hold of Techmac is a nightmare. Repeated messages, voice calls and an email go unanswered even though I can see them online and reading their WhatsApps.

I have no communication from them and am thoroughly disgruntled with their less-than-professional attitude to me. I have been polite and courteous and despite a ream of messages to them to ask to send a technician again since Friday last week (today is Wednesday), they have not bothered to reply to me.

I feel its a case of 'try' to fix it once and then ignore any other calls when the TV ceases to work. So much for their 3 month guarantee.... If Techmac sees it fit to respond to me, then I will review my post on Hello Peter but until then, I feel I have no other choice but to post on Hello Peter in the hopes of warning others