Pro Techno — calling as consumer forum

They are calling from.[protected] number and telling they are from consumer forum and telling to resolve the complaint this company is a fraud company. Below is my previous complaint. And we cannot reply on resolved complaint.
Dear sir/madam,
I got a call from pro techno company, latur, maharastra for part time form filling job where they provide 800 sheets which need to be completed in 7 days. If we fail to do the job we need to pay 4100/- registration charges. I failed to complete the work so i told them i'll pay 4100/- even after saying i'll pay they sent a legal notice and said i need to pay 7100/-. I paid them 4100/- by neft. Then legal department called and told i need to pay 8528/- iif i don't need to attend the court and they told neft is not valid do the payment 8528/- imps you will get 4100/- refund. Today i called to ask for now they are telling i need to pay more 12, 000/- and saying case is filed for 24, 000/- if you didn't pay you need to attend the court and threatening me for the payment. My contact number: [protected]. The person who contacted me in the starting his number:[protected] and one person is telling he is from legal department his number:[protected]. Kindly help me to get my amount refund from this cheating company.