CARDS: I have no need for OpSec (not married, no kids, retired) so I leave my debit card on file for automatic renewal. But as dravid suggests, there are many posters here who claim success using a pre-paid Visa Debit card like those you can buy at a supermarket. Suggestion: Make sure the card is issued by a US Bank (i.e.: not a non-US bank). Foreign cards are likely to be problematic.
Allowance of $2k/month: The devil is always in the details. What are you expecting for your $2,000? Daily meets, weekly or bi-weekly, monthly? Do you want a set schedule like every Tuesday, or do you expect her to be available for a booty call within an hour of your text? Do you demand exclusivity, or are you ok with her banging other SD's, random douchebags from a bar, her current boyfriend (or GF I suppose) or hubby? The more you want from her, the more you will likely need to offer. Depending on your geo-market, a general guideline might be allowances between $300-$600 per meet (PPM). But there are many factors that will impact what you end up offering.
Funding Schedule: Are you comfortable funding her on the 1st of the month with expectation she will show up for all scheduled meets over the next 30 days? HINT: You should definitely NOT be comfortable with this unless you don't mind seeing her ghost you with that $2k payment!
This is DATING: SB's are not hookers (except for those hookers who also sugar date). You won't be writing a review about her if she delivers poor service or is a ROB. SB's are women you date - with some additional structure beyond a traditional or civilian dating paradigm.
I suggest you take the following steps first:
1. Read past pots here - at least the last 6-12 months. More if you can.
2. Calculate your "Sugaring Cost" - be sure to include non-allowance costs like dinners, shopping, travel, hotel rooms (if needed), etc. You may be comfortable offering $400 per BCD date. But your all-in cost for that date will be $400 plus other expenses listed above. So that $400 date may require a per-date budget of $500-$650 or more. The all-in cost is needed for step 3.
3. Calculate your "Sugaring Budget," which will be your disposable cash available for Sugaring. If you can't get what you want without shorting your rent/mortgage, car payment, child support, savings, etc., you may not be able to afford to be here. Or you may need to lower your expectations for the number of dates per month and/or the allowance you can offer for an ongoing arrangement.
Once you have a deep and comprehensive understanding of your true costs, budget and needs, you can start to talk to POT's and negotiate from a position of strength. Next, when negotiating, always base you offer on YOUR budget, and NEVER based on her "worth." Finally, you absolutely will meet POT's that will demand allowances above your budget, and all too often below your needs. Be willing to walk away anytime. There will always be more POT's joining the site. Always.
Life is good
The Cat