Asian Paints — Waterproofing complaint

I got a complete painting and waterproofing work done at my flat C2/89 A Keshav Puram. Delhi through Asian paints in the month of Nov 2021. Within a fortnight water bubbles were formed on the wall and the same was shown to the Asian paint representative who supervised the job. Although it was promised that it will be attended at the earliest nothing has happened till date after numerous complaint at various level and also looking in with the customer care On 28 Jan with a complaint number of [protected].
I am told that the team is discussing the issue for the past 4 months