I have a merchant ID can I use Paypal credit?


As the title says, I just checked and I do have a merchant ID. I would like to use Paypal credit instead of paying outright for the item. Do I still get that option during checkout? I like the option of paying for it in six months without interest.I'm asking cause I don't see the Paypal logo anywhere.
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I haven’t made an offer yet. I’m asking cause a couple of yrs ago ( my last transaction in Agon) I was not given the PayPal credit option and had to switch payment methods. At the time it was asking me for a merchant I’d. There is an item that interest me now And I’m  doing my due diligence.. 
I've had a PayPal Credit account since day one, (actually before, it used to be called "Bill Me Later").  Only time(s) I wasn't able to use it was on overseas sales.  If you have to change currency, you can't use PayPal Credit...AFAIK. 
If in your PayPal account you have already got an established PayPal credit account ( yes they are separate) then you should be all set.
yes, i do you have a PayPal credit in my account that I use most of the time. I was curious based on what happened a couple of years ago. I went to PayPal and found my Merchant ID and now it has been added to my Agon acct. I think I’m going to be ok. Thanks to all that replied.