If your objective is "Buy PTE Certificate", remember that only main assessment results count
https://buy-real-pte-certificateacbc294.silverstonebrief.com/posts/15-terms-that-everyone-is-in-the-purchase-authentic-pte-certificate-industry-should-know
If your goal is "Buy PTE Certificate", bear in mind that just main assessment outcomes count. Usage practice tests, improve accuracy and timing, and make a validated Pearson PTE result through the exam.