Question

请大家帮我翻译下下面这段话 ，用英语，不要机器，可以让客户明白意思。我是做油画的。 很紧急 拜托大家了

（客人的画到达他们公司，产生了额外的关税费用，只有他们交了关税的费用才能拿到画）
亲爱的朋友：
我们已经和快递公司联系了，TNT不是要多收两次费用，而是画到达贵国的时候产生了额外关税费用，TNT公司已经帮你们把关税交了，所以他们要收取您关税的费用。

Answer 1

Dear Valued Customer,

We had contacted the courier services company. TNT is not charging double for the service. It is because that when the art piece arrived at your country, the custom had requested for an additional tax. TNT had paid on your behalf, therefore they are requesting you to re-imburse them.

Sincerely,
XXX Art piece supplier

Answer 2

Dear,
We have connected with the TNT. The extra fee was be charged by the Custom in your Country as customs duties for the painting ,which was pre-paid by TNT.
So the TNT requied is customs duties and shipping fee , not for two times shipping fee.

Answer 3

Dears,

We have contacted with the express company. TNT is not asking for double payment for this delivery. It’s because that there is extra duty fee when this delivery of painting arrived in USA. TNT has paid for the duty fee and now they ask for the payment on the duty from your company in return.

Answer 4

Dear friends,
We had communicated with the express company and we learnt that TNT did not charge your fees. Since extra tarrif fees would be generated when the oil paintings reached your country,TNT had paid the fees for you in advance.Therefore, you need to repay them.

Answer 5

Dear friend,
We have connected with the delivery company and found that there's no TNT charge for the second time. But there were extra taxes when the paintings arrived your country. Since the TNTcompany had already paid the tax for you, they have to ask you to take the fees.

Answer 6

Dear Sir or Madam,

We have connected with TNT Express and get their explaination: it is not the TNT wants to be paid twice. When the cargo reached your place, some additional custom fees generate and the TNT Express had paid it for you. So, TNT company needs to charge.

商贸函电中抬头没有说亲爱的朋友的。
纯个人翻译，希望能帮助到你。