Could you advice me that how to change private SIM payment from monthly to annually ?

[In Yan]

Could you advice me that how to change private SIM payment from monthly to annually ?
I have 5 SIMs 
I would like to change payment methods 3 SIMs from monthly payment to annually payment.

Also I would like to bank transfer for the payment.
Can you issue invoice for the pauments?

Yours
Keiji Mitsubuchi

[Freya Mokusei]

Please see Rolig's smart advice! I've strikethrough'd my own.

Pretty sure this isn't possible. You pay tier monthly, along with everyone else.

LL don't support bank transfers or invoicing.

P.S. Sim isn't an acronym, there's no reason to capitalise it. It's short for simulator (vs. Subscriber Identity Module).

[Rolig Loon]

Under some circumstances -- if you are a non-profit or educational organization, for example -- you can change to a six-month or annual billing cycle instead of a monthly one. The organization I work with in SL pays on a six-month cycle.  To do that, you'll need to talk with someone in the LL billing office.  You may also want to look at http://community.secondlife.com/t5/English-Knowledge-Base/Buying-Private-Regions/ta-p/700045/comment-id/432#Section_.6

If you have a non-technical issue related to billing concerns, you can call the Linden Lab billing team at the following toll-free numbers at any time 24/7:

US/Canada: 800-294-1067
France: 0805-101-490
Germany: 0800-664-5510
Japan: 0066-33-132-830
Portugal: 800-814-450
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UK: 0800-048-4646
Brazil: 0800-762-1132

Long distance ( not free, but you can use Skype to save some cost ) : 703-286-6277
**Note: Support is offered only in English