Credit Builder Credit Cards Barclaycard Credit Builder Card, Please Explain?

Barclaycard Credit Builder Card, please explain? - credit builder credit cards

My friend has recently launched a manufacturer of credit card with a credit limit of £ 200 and £ 50 Barclaycard limit on cash, but do not really understand, the conditions are ... Someone else could explain it that short?
Basically, if we pull back 200 €, as we pay for the end of the month for the rest of regulation and the credit limit, re-established? And what is the limit of 50 pounds sterling cash really means? Please help! xx