Tds @ 1% wrongly deducted

Dear Experts !!

1. I got an order on behalf of firm X (my close relatives firm)
2. We have both purchase and sales invoices issued.
3. We file proper returns.
4. Now a company Y (to whom we sold goods) deducted 1% TDS on my PAN CARD NUMBER. 
5. TDS Amount works approx 20,000 INR
6. I requested company Y to rectify this error and deducte the same amount of TDS on my relatives PAN
7. However they are not doing so. They advised me to swap/settle the issue between me & relative. I have no idea what this means. 

• Finally, there is no way this company is going to help me (its a MNC) 
• Can you anyone assist me with this query
• Matters have gone a little more complicated cause. I have floated my own firm now with new name and supplied some goods.

I need a some professional to advice this query. 
I also need services of a CA in South Mumbai to manage my accounts.

# I am new start-up