Appointment with INSS

Has anybody managed to make an appointment with the Social Security Office at Huercal-Overa via the automated telephone number recently?

My mum finally sorted her residency but now needs her health card (she has her S1). She went to the INSS at Huercal-Overa to try to make an appointment but was told she would have to 'phone for one.  She couldn't understand the options on the automated service (too fast) so enlisted the help of a kind Spanish teacher. However, despite many attempts even she has not been able to get through to make an appointment (busy, not available, ring back etc etc).

Any advice please??

Thank you in advance.