Replacement Provisional not arriving - test in 5 days

I ordered a replacement provisional license on October 5th of last year and it still hasn't arrived. The DVLA's contact services are just never available, I've tried reaching out to them on twitter and by email too - what else can I do? I'm more than test ready, are there any options to not bring my license, or to contact the dvla in any other way? I'm going to have to rearrange my test which is just so demoralising, I just want this sorted lol