A week out from the wedding, both the DJ and Bartender aren’t responding to me. What do I do?

My fiancée and I are getting married on the 23rd and I’ve been trying to reach out to every vendor to finalize every detail, however two are not getting back to me.

The bartender has not responded to the email I sent, and while this worries me, they did respond slowly to my initial emails. I’ve signed a contract with them, but they did not require a deposit.

The DJ has not responded to either my text or email, and when we first talked they were very quick to respond. I’ve signed a contract and fully paid at this point.

Should I keep trying to contact these vendor? Look at different ways to contact them? Or just cut my losses and try to find someone else?