Bajaj Finserv — E M I deduction

Address:

Akola, Maharashtra, 444001

I have taken a lone for mobile in feb 2 017
Emi are atogain from a/c. Last month emi was diducted on proper time, but this month emi was not diducted regurlary but there was a massage from blf that diduction rejucted by bank due to mismatch of sign. Also a massage from blf regarding nach form. What may i do to make emi regular?. After lone case appruved igot a call from your head office. After that two exicutives came to me for signing some documents. But i was not at home that time. So that docs. Are unsigned, and no one has came again for sign.