You can easily checkout with a credit card by using https://buy.bitcoin.com. Please follow these steps:
- Log into RubRatings & visit Account -> Buy RubRatings Credit
- Start Bitcoin checkout & copy OUR Bitcoin address
- Visit this page: https://buy.bitcoin.com and select 'BTC' which is also know as Bitcoin Core (DO NOT SEND BCH - Bitcoin Cash).
- Enter the amount in USD you want to purchase. They have a minimum of $50.
- Paste OUR Bitcoin address from step 1 in to the Bitcoin Core address field
- Complete the checkout steps with a credit card