You must assume in this country that whatever you buy in a web/store one does not know what one is selling.
In other words they have no understanding of it, they just pass on the product, and make a profit on it. That is all.
Therefore, you cannot expect any aftercare either.
Try to live with it, which I have been trying to do for more than 25 years.
Even now, I have an LG air conditioner here, that appliance is 3 years old and is giving problems, if you try to find a service technician who can only clean it.
If the problem is deeper, it's always "the PCB needs to be replaced" that's all he can do, and LG doesn't come to you, yes only if you live in a big city....
Selling they all want but aftercare....forget it.