OneAssist Consumer Solutions — closed the complaint without resolving it

We raised the complaint on 15th of march-2020 (Complaint no. 5797190) your team visited our home on 23rd of march to rectify the issues, they collected inr3800=00, changed all filters including motor, after the repair we are getting irritative sound & within 7 days again water quality got deteriorated and we again called the team. After that again visited on 27th of april & service engineer told again all filters and motor has to be replaced and we need to pay. Also he informed they have removed uv filtration & hence the noise in coming. The engineer insisted us to have a word with his manager and after discussing, the manager told he will claim for insurance & once he get the approval his team will visit and resolve the issue. We got the message from one assist stating that insurance has approved and service team will visit to resolve the issue with in 11th of april, again we raised the complaint then they changed the visiting date to 18th of april then without attending the complaint oneassist closed the complaint on 14th of may, again we raised the complaint on 16th of may,
One assist requested time till 18th of may,
And again till 19th of may,
Again they requested time till 23rd of may,
Again your team asked time till 26th,
Again they requested time till 29th of may,
Again requested time till 31st of may,
Again requested time till 12th of june,
Then again asked time till 17th of june,
Now again one assist is asking time till 20th of june.

Is this the way to handle customer! We are not begging, we have paid amc charges as well as for spares, please provide the service on priority & do not test the patience by providing alternative dates. You have requested more than 12 times for alternative dates to service. If you are not able to provide the required service then we will be forced to take further steps.
With best regards

Subramanya. K