Cheque stopped when banked and now client is ignoring my calls ! over £100

[beautyretreat]

How can I get my money back? The client has had the treatments and took some products, but on banking the cheque it has been stopped.
The client booked an appointment and then didn't show, now she is ignoring my calls, I have left voice messages and she left a message on the answer machine back but is evading my calls again.
Was thinking small claims court or solicitor. How would I go about this ?

Any advice would be good 

[LucyD]

In my experience it is worth still chasing this client.  Do you have her address from any record cards?  I would write to her, keep a copy and carry on with the calls.  If you get no response then it may be worth contacting citizens advice who may be able to advise about small claims procedures or do you know anyone on the legal side who could let you know of any costs involved if you wanted to take further action?  It may also be worth contacting Business Link as they sometimes have resources where you can get legal advice, or will certainly point you in the right direction.
Hope this helps and you get the result you need