Is there anyone who can help with some solid advice please.

I’m going back to SA from Thailand in Feb, already have my ticket. Im working on all my documents and funding etc now and should be done in a few days. Is it worth flying to Hanoi now to do an application or should I do it when I’m back in SA at the Thai embassy in Pta.

I’m asking because when I came back from SA (I returned from Thailand to SA on 26 Nov and arrived in Thailand again on 8 Dec) they didn’t seem too happy and insisted on seeing my onward ticket which I had.

I’m just worried if I leave to Vietnam for 10 days or so and come back I might not be allowed in because of too many visits even tho I have a return to SA ticket.

I hope this makes sense, appreciate any legit suggestions or advice