I am having the exact same problem, after I completed my first 2 shops and they were approved. I have not gotten paid for one and I should have already. I requested a phone shop to break the ice on those and no one ever got back to me, so I deleted the request. I have emailed the MSP of the first shop about payment today, hopefully I hear something soon....
This same thing just happened to me, I just got the email and as soon as I could log in they were gone. I live in a very rural area and I have never seen them gone this quickly, but I'm sure it happens!