Not on an intermediary's say-so. Reservation mechanisms, deadlines and deposits exist only if the official program page says they do. Confirm the current terms and the official payment channel, and align any payment with actual receipt of sale proceeds.
Urgency is a sales tool; the official page is the calendar
Hypothetical example: Farida is being told that places are limited and a deposit secures hers. The first check is whether the official program page describes any reservation, queue or deadline at all. If it does not, the urgency is manufactured. If it does, the page will say how and to whom payment is made, and that is the only channel she should use. The second check is sequencing with her own affairs. A gift cannot be undone, so it should not be made from bridging funds or borrowed money before the sale of the blasting company closes and the proceeds are actually in her account. The third check is that terms may change between her first reading and the day she pays; a new program can be amended, suspended or litigated. Record the terms at each step. If the intermediary's response to these checks is more pressure rather than documents, that response answers the question about whether to proceed with that intermediary.
Hypothetical example: A marine-survey company owner hears that a same-week payment will secure a Gold Card place. She should first determine whether the official material actually creates a reservation window, then confirm the payee and consequences of a changed program. A dated official notice settles the existence of a deadline; sales pressure does not. Because an applicant’s payment is a non-refundable gift, not a recoverable business investment, an uncertain timetable justifies pausing rather than acceleration.