Boat — Received only 4 when ordered 6 smart watches

Address:

no address in their website this is their email address [email protected]

We are shocked to see we have received only 4 pcs.
The product ordered was 6 pcs but we have received 4 pcs only. The order details are as follows.

*Items include:*, 6x boAt Watch Storm - Captain America Marvel Edition - Captain's Blue

Order no 4623404

*Your boAt Lifestyle order 4623404 has been dispatched.* 🚀 The package is shipping from Bengaluru, Karnataka via Delhivery with AWB# [protected].

*Items include:*
6x Watch Storm Captain's Blue

I have already raised this issue on the same day to the customer care executive by phone and by mail. I have been following regularly with them for the past one month. We have exchanged more than 30 mails. They are just replying saying we want 7 to 10 days time to check the details. Still the issue is not resolved.