I presume you want to change your Paypal details with Alidropship developers for payment of plugins etc, right? Just contact
support@alidropship.com and let them know. If you already made a payment to them with your personal account..it's too late. Actually, it's not even neccessary to contact them. Just use your company Paypal account next time you make a payment for something.
If you are talking about giving the Paypal details to the developers because they are making a custom site for you...then simply tell them via
support@alidropship.com ... or if they have finished making your store...change it yourself according to the instructions in the post above ☺