I wanted to (do something)

A very polite way to explain why you're doing something is "I wanted to ___". For example:

Hi Jen. I wanted to see if you'd like to come out with Emma and I and some friends of ours to a show next week.

Yes, I just wanted to verify that my payment has been received?

Some phrases that can be used after "wanted" include:

I wanted to ask...

I wanted to tell you...

I wanted to check to see if...

I wanted to remind you that...

I wanted to let you know that...

I wanted to find out whether...

Note that this is in past tense: you say "I wanted to ___" instead of "I want to ___". There's no grammatical reason for making it past tense; it just makes your sentence sound more polite. When you say it this way, it sounds like an explanation of why you're calling, why you're visiting, etc. In the example at top, the speaker uses this to explain why they're having their meeting.

just (do something)

You use this phrase when the action you're describing seems easy, simple, fast, unimportant, or unexciting:

I just googled "new york florist" and that was the first shop that came up, so I called them.

A: What did you do this weekend?

B: I just sat at home and watched T.V.

receive (something)

To "receive" something basically means to get it from someone. 

The word "receive" is pretty formal. It's used in official documents or in business communication. In normal conversation, "get" is more common:

We got over a hundred submissions.

"Receive" is often used in a pair with the word "give" - there's a famous saying "It's better to give than to receive."

Yes, (sentence)

This is a polite way to start a telephone conversation with a business when you don't know the person you're talking to. You speak this way when:

• You call customer support.
• You call for someone at work, but someone else answers.
• You call to make an appointment with a doctor, dentist, hair stylist, etc.

verify that (clause)

To "verify" that something is true means to make sure. "Verify" is a more formal word and usually used in business situations where you don't know the person you're talking to.

You verify "that ___". You can also replace the clause with a word like "something":

Can I just verify something?

(something) has been (done)

Use this form when you don't want to say who did something (or you don't know who). In the example at top, it's not clear who receives the payments at the bank. So you say "the payment has been received".

?

Even though the example above is not formed as a question, it would probably be spoken with the intonation of a question. When you're asking a question, your voice gets higher (in pitch) at the end of the sentence.