I haven't joined Goldmoney. But it sounds to me like you can buy gold with Bitcoin. And, the way they let you use Bitcoin is by loading some bitcoins to a wallet in your Goldmoney account, and then using them to buy gold.
I use goldmoney, one of the ways to deposit into your account is to deposit bitcoin or other altcoins, although there are some restrictions in terms of what valts you can buy gold in with cryptocurrencies.Quote
There are other words in the Terms that might not seem to make sense without some explanation from Goldmoney. For example, "Goldmoney does not have control of, or liability for, the products or services that are paid for with the Goldmoney Services," sounds like they might be out of control.
They are an international company, so perhaps they're trying to cover themselves from some random country's odd regulation. 
