hi there,

the center she used was in Cagayan de Oro:
Rubrics Review Center
3rd Floor D and L Building
Pabayo-Pacana Sts., Cagayan De Oro City
Telefax: 088.856.3811
088.305.5700

rubricsielts@yahoo.com
IELTS Review Centre

All these centers on that list have been approved by the British Council. I don't think there will be any bad companies as the British Council would not want their name associated with these types of centers.

I know it can be frustrating, but if you use one of these centers approved by the British Council and pass the exam thats one less thing to worry about.