I'm currently in the UK on a spouse visa and have just submitted and paid for my IHS and FLR application online which was all accepted no problem. However now I have been put on to 'SOPRA STERIA' website where I have to book an appointment at one of their service centres, however when I go to book an appointment every day just says 'no appointments available'.
What on earth am I supposed to do?

In the mean time I will begin uploading supporting documents.
Many thanks.