Bad services at Silverton Midus

Buying Parts at Silverton Midus has left me in dept. I bought parts at midus and they were wrongly supp****. I asked for refund on the 21st Of September till today (31 days +) i haven't received the refund. They are giving me turn arounds and when i ask to speak to the manager they said she's not around. This is my second review as the matter hasn't been attended at all. They are not even answering my calls any more when i follow up