I've had several issues with my midwife care of which the referral is only one! I've written to the Supervisors of Midwives to raise concerns. Possibly the worst thing was after having a higher than usual nuchal measurement, while having the blood tests they booked me in for an extra scan at 16 weeks and I asked one of the midwives to sign my prescription exemption form. She said "don't you want to wait till your 16 weeks scan?" as if I might not be pregnant then!
My GP definitely sent off my referral (I was there when she did it and then again when she checked a couple of weeks later) but the hospital never received it for some reason. I self referred and then rang them a few days later. Definitely ring the hospital.
Definitely chase it up. I also saw my GP at 5 weeks who said he'd refer me (wouldn't even give me any contact details for the midwifery service). Didn't hear anything by 10 weeks, finally got sick of waiting and called the hospital maternity ward as it was the only number I could find. There was no record of me! Got booked in at 11 weeks, they usually aim to do it before 10 weeks round here.
The hospital also forgot to refer me for a gestational diabetes test at 35 weeks due to a massive baby. You have to really be your own advocate and stay on top of these things.
And they lost my notes while I was in labour (they thought I'd been discharged when in fact I'd been induced!). Paperwork is not my local trust's strong point.