With reference to the method you recommend, it is much regret to inform you that it doesn't work well with it. In this connection we would appreciate if you could consider the above-mentioned suggestion. Your best attention would be highly appreciated.
ビジネスレターの返信としてオフィシャルに表現してみました。
With reference to the method you recommend, it is much regret to inform you that it doesn't work well with it. In this connection we would appreciate if you could consider the above-mentioned suggestion. Your best attention would be highly appreciated.
御社が提示された方法に関してのご連絡ですが、残念ながら上手くいかないことをご報告させていただいております。よって、この件に関しましては上記に述べております当社提案をご検討いただきたければ幸いと存じます。よろしくお願いいたします。
日本 
