Global Connect — emi interest & processing fee refund not received

My name is prasad prakash musale, wakad, pune. My mobile number is [protected] & [protected]. I have received package amount of rs.25, 000/- for 7 days period from global connect holidays & club pvt ltd on dated 23rd may 2017 on my father mr. Prakash musale name. Payment was paid through hdfc bank credit card on 12 months emi basis. 1st my installment process was not done. After meet with mr. Manish, he has completed emi process.
That time, from hdfc bank told that processing fee will be applicable on this transactions. So mr. Manish told me that my office will refund this amount & also refund interest which will charge on your basic amount i. E. Rs.25, 000/-.
Last month bank charged processing fee & interest total amount of rs.600/- in the statement. My payment due date was 02nd aug.2017.
On dated 23rd of jul & then 27th jul 17, i have send my statement copy & my cheque photocopy to mr. Vikrant (Director of this group) by whats up as per his suggestion. But till today i. E.10/08/2017, i have not received my refund amount. When i was trying to talk with mr. Vikrant on phone, he was not receiving my phone & daily just give commitment on whats up that today i will transfer refund amount on your bank account.
He told me that if you want to take legal action then go ahead no issue.