What is the ruling on purchasing a Hajj visa for an inflated price through tourism companies, and does that affect the validity of Hajj?

It is not permissible to trade or sell visas unless the owner truly does not need them, in which case they have the right to transfer them at the same cost they incurred. This applies to Hajj visas: it is not permissible to acquire them with the intention of selling them. However, if one acquired them with the intention of performing Hajj and then changed their mind, it is permissible to transfer them at their original cost or return them to the issuing authority. The majority of scholars have deemed trading in them forbidden, considering it an exploitation of the vulnerable among Muslims. As for purchasing a visa for Hajj, whether it is an obligatory or a voluntary pilgrimage, it appears to be permissible. The sin in this case falls upon the seller, and it does not affect the validity or acceptance of the Hajj.