Sports: follow a selection through to settlement
Before reading a price, identify the event. Record the competition, teams or participants, date and the period covered by the selection. A market for regulation time is different from a market that includes extra time. A player selection may depend on participation. Similar team names can appear in different competitions, so a short label is not enough. The provider's exact market wording determines what is being measured.
Next, inspect the final accepted ticket. Match its market, selection, stake and accepted price to the intended action. A number visible while browsing may have changed before confirmation. If several selections share a ticket, read how a void or postponed event affects the combined calculation. A projected return is a conditional calculation, not a result. Store the accepted ticket and the applicable settlement rule together.
Work backwards from a disputed result
If a settlement later looks wrong, begin with the accepted record rather than an earlier screen. Note the event identifier and the rule you think applies. Ask the provider which result source, correction policy and time period it used. Independent score services can show a different stage of a corrected result. Compare like with like: the same event, period and source timestamp. A specific question is more likely to receive a useful answer than a claim that the displayed score was different.
Sometimes two prices appear attractive until their markets are read in full. One may cover the first half, the other the whole event. Write the conditions beside each price before comparing them. If there is too little information to identify the market, leave it unselected. A decision can wait for a complete rule.