You handled billing issues adequately, no more no less
When I encountered a mistake in my invoice, I reached out to you directly for support. Your telephonic assistance was prompt, and the staff took responsibility to investigate the error immediately. The correction process wasn’t instant but completed in a reasonable timeframe without pushing me around or giving generic answers. That said, the initial error itself was avoidable, and I expect better quality control in billing to reduce such cases. Though you managed the problem decently once I reported it, overall I’m neutral about the experience. Please ensure billing accuracy upfront to improve customer confidence and reduce the need for such follow-ups.