Filled Wrong form but biometric is not yet done

/Hi

My wife applied for her ILR yesterday using the online form and booked an appointment for biometrics after making the payment. Today when I reviewed her form, I realised that she has filled the SET-LR form for 10 year route. But she should have filled the SET-M form for 5 year settlement as a spouse of a person settled in the UK.

We are not sure what to do now and I plan to contact UKBA for further actions. Any suggestions on what we should do? We saved many months for her application fee and it is a big tragedy to loose it all. As we have not done the biometrics yet, I guess UKBA should not have picked up our application for processing and should be hopefully understanding. Did anyone make similar mistake and got your fees refunded?

Thanks