。。
Thank you for your guidance. That was a great help.
Literal
Honorable-instruction thank-you [polite-ございます]. Was-saved [polite-ました].
ご教示 is a formal/business-register word for 'instruction/guidance,' using the honorific ご prefix. ありがとうございます is the stock polite thank-you. 助かりました 'was saved/rescued' is the natural, everyday way to say 'that helped a lot' — literally 'I was saved,' with the speaker as the experiencer-subject who was rescued from difficulty.