We ordered Whatsminer M3's last night and sent payment via our exchange.

Unfortunately our exchange sent a different amount and our order has been canceled but none the less our BTC is still gone and order on Pangolin canceled.

Upon further investigation we discovered the exchange we use merged our payment with someone else's (another customer of both Pangolin & our exchange) so Pangolin did not apply our payment to our order or the other customers (whom I have no idea who it is).

There are two major issues here:

1) Our exchange should not be merging payments from two different customers to the same receiving address in the same transaction EVER
2) Pangolin should use a separate receiving address for each order to simply the reconciliation process.

We have sent all of the details to Pangolin and they have responded however it has been 10 hrs since all of the information was sent to them.

Fingers crossed we do not lose our BTC.