Thank you everyone for your comments and suggestions. I ended up having a friend spot me $500 to pay pushtx to accelerate and it worked like a charm. Transactions confirmed and roobet has released my funds.
Thanks!
wecanbothwin
A question about your Roobet account though - why did they require those two transactions to confirm before you could withdraw? And why two transactions anyway, if they put some deposit condition on your account then wouldn't you only need to send one transaction for whatever it is they wanted you to prove?