[BUG] ERC20 tokens show "ETH" as name in checkout demo
**Describe the bug**
In the store demo, paying with e.g. USDT shows ETH but with USDT price.

**To Reproduce**
Steps to reproduce the behavior:

1. Go to https://store.bitcartcc.com/
2. Add item to cart, continue to checkout
3. Select "USDT (1)" (which by the way isn't very descriptive either, should be "USDT (ERC20)" or something like that)
4. See incorrect and confusing currency labels

**Expected behavior**
I expect to see "1 **USDT** = $1.00" and "Waiting for 5.000002 **USDT** payment"

**Screenshots**
![image](https://user-images.githubusercontent.com/6010463/177536888-81871117-b1ca-4759-b455-134eef2a15c6.png)
