Trying to port my old Lebara number to my new Lebara sim

Hi all. Ive found a new deal on Uswitch that's on Lebara. Im already on the Lebara network with my current sim card and i want to take my current phone number to the new sim card, if that makes sense? When ive been online to port my number, it asks me to put in the 'non Lebara' phone number in, which i cant, because both sims are Lebara! Im wondering if it actually matters whether or not both sims are Lebara? Ive tried on live chat, but had no luck with them
Someone please help me

Tracyrice, Cannot be done. Google 'Lebara port dance' for info about porting number to another provider, then porting back to Lebara.