Who is giving this sow credit to allegedly splash out on all this new furniture? Her income is unpredictable, and her credit score has to be abysmal. Bank of Grandma/Mom can't be flush enough for all this spending.
Peetz has been steadily employed for quite a while, and other than the occasional comics/manga or date with Chantal, he probably lives cheaply. He doesn't have a car, doesn't seem to travel anywhere, and obviously isn't spending much on clothing or personal grooming. He probably doesn't cook at all, but given that he has a sedentary job at a call center and isn't a massive fatty, spending a lot of money on food isn't his thing, either.
So he could very well have savings, as well as decent credit. And while I don't know about Canada, furniture stores here in the US are
constantly advertising their "No Money Down! Zero Interest for 90 Days!" financing plans. Maybe they got a similar deal, with "easy" store credit terms (which allowed them to justify going $1000 over budget).
So maybe he's the one whose credit and savings are financing most, if not all, of the move-in expenses, and who has signed for store credit to buy the furniture. Chantal's no doubt told him some story about how she was caught off-guard by Bibi wanting her to move out, and thus doesn't have the money needed to move, but promises she'll be able to pay her share once they're moved. Who the fuck knows.
What I do know is that Chantal will be dead useless when it comes to moving any of the furniture because she weighs more than any of the furniture. That ought to be fucking hilarious; too bad nobody will be filming it.