Bajaj Finance — wrong birthday registered with you

Address:

8/48, Bijoygarh, Jadavpur, Kolkata - 700032, Kolkata, West Bengal, 700032

I tried to log into my bajaj finance account, but i found that wrong birthday is registered with you. As i put the actual date, but it is showing invalid, thus i'm not being able to login to my account also.. Kindly help. I urgently need to check my current emi structure as i need to buy a laptop on an immediate basis. But i'm not being able to buy it with the help of bajaj finance. If it's not possible, then i need to look for some other emi option.