Reliance Digital — lg 1.5 ton ac; installation not done properly and gas leaked; worst customer service

I bought a lg ac 1.5 ton last year may from reliance digital store in kothapet, hyderabad. I have used the ac for 1 month in summer then after we did not use it. This year when summer started in april when started using the ac, it is shutting down after 30mins evrytime. So i tried reaching reliance digital customer service and lg customer service as well. But there is no response as there is a pandemic situation i guess. So 2 weeks back lg service people came to check the problem and they said the problem is with the installation. The reliance people who installed the ac did not install it properly itseems and because of that gas leaked and there were s no gas left in ac. That’s the reason ac is shutting down. Lg technician said as the installation is not done properly reliance installation technician should reinstall the ac properly and fill the gas as they did not install it properly before. I’ve informed the same to reliance costumer care and they said they will send a technician in 2 days and fix it asap. It’s been 2 weeks no proper response from the store or the customer service. Everytime i call they will ask the problem and promise that they will send a technician next day for sure. This is going on from 2 weeks but no progress. When i call the store everyday they give a technician the t incharge number to call and when i call i will have to explain everything everyday and they promise me that it will be fixed in a day or 2. I am fed up with this. I need a resolution immediately. My family members are fed up with this and asking me to take the ac to the store and return it. Either you guys fix it immediately or take the ac back and return my money or replace this ac. This is not how you guys treat a customer.