Symphony Limited — Symphony diet 22t air cooler not working as it should be

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symphony official website

We bought DIET 22T symphony air cooler last year (2021) April 4th, It worked fine the next few months till july, 2021. After that the cooling got reduced each day, i don't know why, and now from the last month one drop of water is not used by the cooler and therefore no cooling at all. I tried calling customer care but every time it disconnects while i was describing the problem, and this happened a few times. I also tried filing a complaint on symphony website and when i entered all the details and clicked submit, it doesn't take it and thus no complaint was registered. I request an immediate solution for this issue by sending one of your technicians to our place and get the issue resolved as it is very hot for my old grandparents without it.