Unfortunately, PayPal Credit is not accepted on Reverb. This is not specifically about PayPal Credit itself, rather, we can only accept the default payment method set in a buyer's PayPal account. If an account's default funding source is set as PayPal Credit, theoretically, that should be where purchases are charged to.
If you're looking to split up payments on an item, many sellers accept Affirm, a third-party financing service we have partnered with. In addition to this, Preferred Sellers are able to offer Layaway.