Help sending bitcoin to bitcoincash wallet I've used an UPHOLD wallet to buy an AntMiner S9 from www.bitmain.com.

Bitmain provided a bitcoin cash address for payment.  However, by mistake, I sent bitcoin worth $1450 USD to their bitcoin cash wallet. Now, they have not confirmed the payment. And now I do not know what to do?  Where is my money?

Uphold gave me a BlockChain confirmation address and the transfer appears but as (not spent).  Neither bitmain.com nor Uphold has given me any reply. 

I did this on Friday, November 17 and today, Monday, November 20, I have not received a response. 

What should I do?  Can someone help me? I cannot afford to lose $1450 USD.
If you control both the sending (BTC) and receiving (BCC) wallets, you can recover the money by restoring the private key from the BCC wallet into a new wallet created on the BTC BlockChain.  Unfortunately, in this case it appears you have sent money to a BitCoin Cash wallet you do not control.

If you do not control the receiving address, sending a Bitcoin payment to a Bitcoin Cash address will almost certainly result in total loss of the money sent to the Bitcoin Cash address.  When you send Bitcoin, you are sending it to another address on the Bitcoin BlockChain.  There is no built-in method of sending Bitcoin to Bitcoin Cash directly; you should convert the Bitcoin into currency, then purchase Bitcoin Cash with that currency, typically through an exchange.

If you do not own the receiving wallet, the only way to get that money back would be in the highly unlikely event you sent it to an address that happens to exist in the Bitcoin BlockChain, and the person who owns that Bitcoin address decides to be nice, and send the money back to you.

As always, it pays to understand how a currency works by using a small amount of money at first.  You wouldn't give your 4 year old $1,500 to play with, would you?