Billing currency and commitment
Most credible CRM products bill in US dollars, so a rand budget carries exchange risk on an annual commitment. Confirm what the annual term includes, whether you can add and remove seats, and use the free tier while the decision is open rather than paying to evaluate.
Interface language
Said plainly: HelloGrowthCRM is English-first. For most South African teams that is a non-issue, since English is the working language of quotes and reporting, and customer notes in Afrikaans or isiZulu are stored and searched normally. If a fully translated interface is a hard requirement, decide that before the trial, not after.
Invoicing, VAT and getting paid
Keep tax invoicing in your accounting system, where your VAT number and SARS obligations already live, and use the CRM for the quote, the approval and the follow-up. Payment lands by EFT, debit order, card link or an instant payment method, so record the agreed method and date on the deal. Collection calls are far shorter when that field is filled in.