State Bank Of India [SBI] — money not credited in my fastag account

Address:

Ganga Patti Bharatiya Nagar, 5 A, Jaunpur, Uttar Pradesh, 222002

I recharged my fastag account with 1000rs on 18/12/2019. Money deducted from my bank account but did not credit to my fastag account. I complained about 20 times to customer care of sbi fastag but didn't got satisfactory response, whenever i call sbi fastag customer care, they say i should contact to bank and when i contact to bank they say we have credited money in merchant's account, contact to them.