Because of certain reason, I can't pay the seller through the marketplace platform. Is it appropriate to use:
我可以直接转你们的支付宝上吗?
to ask to pay them directly to their Alipay account?
我可以直接转你们的支付宝上吗
You missed a preposition
我可以直接[转]你们的支付宝上吗? = Can I directly [transfer] your AliPay? (X)
我可以直接[转到]你们的支付宝上吗? = Can I directly [transfer to] your AliPay? (O)
我可以直接[转入]你们的支付宝上吗? = Can I directly [transfer into] your AliPay? (O)