Im at my wits end with unionbank. HELP PLEASE

Im having troubles connecting sa customer service nila. Chat, call, email. Wala.

Im thinking of going to a branch na lang, pero before going gusto ko sana tanong if they can help me with my concern para di sayang punta ko, kaso ilang branches na ang tinatawagan ko pero ni isa walang sumagot!!!

If i go to a UB branch, matutulungan ba nila ako sa cc concern ko? Just want to check yung nasa monthly bill ko. Will they have visibility kaya?

Edit: here’s my concern:

I missed a payment kasi. Akala ko nag go thru payment, yun pala hindi. When i checked my SOA, may nakalagay na “installment interest charges” and “merchant installment interest charges”.

I want to know if these charges are there dahil lant di ako nakabayad on time. Yung installment ko kasi na yun, 0% interest sya nung binili ko sa store.

I cant view my previous SOAs din for some reason.