Agarwal Packers & Movers — Not getting refund of excess payment

I had made an advance payment of Rs. 1800 while booking a slot for April 9th. While settling the total bill amount of Rs. 22054, I forgot to adjust this amount and landed up paying the total amount of Rs. 22054, instead of Rs. 20254. This happened on April 9th and ever since I have been following up with Ms. Priya and Ms. Himani via email for the refund. The email refernce no. is ## 2261820 ##]
I have written to [protected]@agarwalpackers.com and also copied tl2.[protected]@agarwalpackers.com. Everytime I am told wait for 8 - 10 days and it's already been 30 days like this.

What kind of a customer care service is this? A quick UPI transfer takes 30 secs these days!