HDFC Bank — Hdfc not crediting my money

Address: 106 bhopal road dewas

2 Products were returned to amazon on 19th of August 2020, Refund was initiated by Amazon on 20th of August and it was expected to get credited in the bank account within 25th of august 2020. No amount has been credited by the bank till now. Reference No of both the Transcation's refund were sent to HDFC bank but then also the same is not credited till now.

They are even not ready to call us the only thing they are doing is taking undue advantage of the Covid-19 situation stating that limited staff is working therefore we are not available on call.
Replies for mails comes in 2-3 days where they asks us one more information which is generally not allowed to tell by amazon as per their policy.